<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style> 
		.div-a{ background:url(div-a-bg.png) no-repeat;width:230px;height:136px;padding:10px;} 
		.div-b{ background:#000;width:200px;height:100px;padding:5px;color:#F00} 
		</style> 
	</head>
	<body>
		<div class="div-a"> 
		<div class="div-b">DIV半透明实例演示</div> 
	</body>
</html>